Theft prevention device



FIG. 1 is a perspective view of a theft prevention device showing my newdesign;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof, the right side view being a mirrorimage;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is an exploded perspective view thereof, shown in an unassembledstate.

Environmental features shown in broken lines are for illustrativepurposes only and form no part of the claimed design.

The ornamental design for a theft prevention device, as shown anddescribed.